Geography • Physical GeographyMedium
Which of the following describes a 'Drumlin' landform?
A. An elongated, teardrop-shaped hill formed by glacial ice acting on underlying unconsolidated till✓ Correct Answer
B. A sharp-edged ridge separating two adjacent glacial valleys
C. A deep, steep-walled, amphitheater-like basin carved into a mountain by a glacier
D. A flat-topped hill remaining from the erosion of horizontally layered strata
💡 Solution & Explanation
Drumlins are streamlined, teardrop-shaped hills composed of glacial till formed beneath moving glacial ice sheets, with their steeper slopes pointing toward the direction from which the ice advanced. Features like sharp ridges or amphitheater-like basins describe glacial erosional landforms such as arêtes and cirques respectively. Incorrect alternatives referencing horizontal strata point toward sedimentary plateau erosion rather than glacial deposition. Drumlins frequently occur in clusters known colloquially as basket-of-eggs topography.
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